Add shaders

2026-05-19 15:33:18 +02:00
parent 593c2e75b2
commit cd9df45d08
1358 changed files with 2429155 additions and 0 deletions
@@ -0,0 +1,138 @@
+#include "HLSLSupport.cginc"
+#include "UnityCG.cginc"
+#include "TerrainEngine.cginc"
+
+float _Occlusion, _AO, _BaseLight;
+fixed4 _Color;
+
+#ifdef USE_CUSTOM_LIGHT_DIR
+CBUFFER_START(UnityTerrainImposter)
+    float3 _TerrainTreeLightDirections[4];
+    float4 _TerrainTreeLightColors[4];
+CBUFFER_END
+#endif
+
+CBUFFER_START(UnityPerCamera2)
+// float4x4 _CameraToWorld;
+CBUFFER_END
+
+float _HalfOverCutoff;
+
+struct v2f {
+    float4 pos : SV_POSITION;
+    float4 uv : TEXCOORD0;
+    half4 color : TEXCOORD1;
+    float3 worldPos: TEXCOORD2;
+    float3 worldNormal: TEXCOORD3;
+//    UNITY_FOG_COORDS(2)
+    UNITY_VERTEX_OUTPUT_STEREO
+    #ifdef GLOBALSNOW_MOVING_OBJECT
+    float3 wposOffset: TEXCOORD4;
+    #endif
+};
+
+v2f leaves(appdata_tree v)
+{
+    v2f o;
+    UNITY_SETUP_INSTANCE_ID(v);
+    UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(o);
+    float3 worldPosOrig  = mul(unity_ObjectToWorld, v.vertex).xyz;
+    TerrainAnimateTree(v.vertex, v.color.w);
+    float3 worldPos = mul(unity_ObjectToWorld, v.vertex).xyz;
+    o.wposOffset = worldPos - worldPosOrig;	   
+
+    float3 viewpos = UnityObjectToViewPos(v.vertex);
+    o.pos = UnityObjectToClipPos(v.vertex);
+    o.uv = v.texcoord;
+   	o.worldPos = worldPos;
+  	o.worldNormal = UnityObjectToWorldNormal(v.normal);
+
+    float4 lightDir = 0;
+    float4 lightColor = 0;
+    lightDir.w = _AO;
+
+    float4 light = UNITY_LIGHTMODEL_AMBIENT;
+
+    for (int i = 0; i < 4; i++) {
+        float atten = 1.0;
+        #ifdef USE_CUSTOM_LIGHT_DIR
+            lightDir.xyz = _TerrainTreeLightDirections[i];
+            lightColor = _TerrainTreeLightColors[i];
+        #else
+                float3 toLight = unity_LightPosition[i].xyz - viewpos.xyz * unity_LightPosition[i].w;
+                toLight.z *= -1.0;
+                lightDir.xyz = mul( (float3x3)unity_CameraToWorld, normalize(toLight) );
+                float lengthSq = dot(toLight, toLight);
+                atten = 1.0 / (1.0 + lengthSq * unity_LightAtten[i].z);
+
+                lightColor.rgb = unity_LightColor[i].rgb;
+        #endif
+
+        lightDir.xyz *= _Occlusion;
+        float occ =  dot (v.tangent, lightDir);
+        occ = max(0, occ);
+        occ += _BaseLight;
+        light += lightColor * (occ * atten);
+    }
+
+    o.color = light * _Color * _TreeInstanceColor;
+    o.color.a = 0.5 * _HalfOverCutoff;
+
+//    UNITY_TRANSFER_FOG(o,o.pos);
+    return o;
+}
+
+v2f bark(appdata_tree v)
+{
+    v2f o;
+    UNITY_SETUP_INSTANCE_ID(v);
+    UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(o);
+    float3 worldPosOrig  = mul(unity_ObjectToWorld, v.vertex).xyz;
+    TerrainAnimateTree(v.vertex, v.color.w);
+    float3 worldPos = mul(unity_ObjectToWorld, v.vertex).xyz;
+    o.wposOffset = worldPos - worldPosOrig;	   
+
+    float3 viewpos = UnityObjectToViewPos(v.vertex);
+    o.pos = UnityObjectToClipPos(v.vertex);
+    o.uv = v.texcoord;
+   	o.worldPos = worldPos;
+  	o.worldNormal = UnityObjectToWorldNormal(v.normal);
+
+    float4 lightDir = 0;
+    float4 lightColor = 0;
+    lightDir.w = _AO;
+
+    float4 light = UNITY_LIGHTMODEL_AMBIENT;
+
+    for (int i = 0; i < 4; i++) {
+        float atten = 1.0;
+        #ifdef USE_CUSTOM_LIGHT_DIR
+            lightDir.xyz = _TerrainTreeLightDirections[i];
+            lightColor = _TerrainTreeLightColors[i];
+        #else
+                float3 toLight = unity_LightPosition[i].xyz - viewpos.xyz * unity_LightPosition[i].w;
+                toLight.z *= -1.0;
+                lightDir.xyz = mul( (float3x3)unity_CameraToWorld, normalize(toLight) );
+                float lengthSq = dot(toLight, toLight);
+                atten = 1.0 / (1.0 + lengthSq * unity_LightAtten[i].z);
+
+                lightColor.rgb = unity_LightColor[i].rgb;
+        #endif
+
+
+        float diffuse = dot (v.normal, lightDir.xyz);
+        diffuse = max(0, diffuse);
+        diffuse *= _AO * v.tangent.w + _BaseLight;
+        light += lightColor * (diffuse * atten);
+    }
+
+    light.a = 1;
+    o.color = light * _Color * _TreeInstanceColor;
+
+    #ifdef WRITE_ALPHA_1
+    o.color.a = 1;
+    #endif
+
+//    UNITY_TRANSFER_FOG(o,o.pos);
+    return o;
+}